Home / 2,791.62-3,851.70-1,672.56

Finding the Fourth Proportional to 2,791.62, 3,851.70 and 1,672.56

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Solution

The fourth proportional to 2,791.62, 3,851.70 and 1,672.56 is: 2,307.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791.62 : 3,851.70 = 1,672.56 : x
  2. Step 2: Convert to fraction form
    2,791.62/3,851.70 = 1,672.56/x
  3. Step 3: Cross multiply
    2,791.62x = 3,851.70 × 1,672.56
  4. Step 4: Simplify right side
    2,791.62x = 6,442,199.35
  5. Step 5: Solve for x
    x = 6,442,199.35/2,791.62
  6. Step 6: Final answer
    x = 2,307.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.